{
  "title": "Outline",
  "type": "object",
  "$schema": "http://json-schema.org/draft-04/schema",
  "description": "The outline of the symbol layer.",
  "properties": {
    "color": {
      "$ref": "color_schema.json"
    },
    "size": {
      "type": "number",
      "description": "Outline size in points, positive only",
      "minimum": 0
    },
    "transparency": {
      "type": "integer",
      "description": "The value has to lie between `100` (full transparency) and `0` (full opacity).",
      "minimum": 0,
      "maximum": 100
    }
  },
  "required": [
    "color",
    "size"
  ],
  "additionalProperties": false
}